Alert archive / Texas / Flash Flood Warnings in 2021
Flash Flood Warning 22, NWS Brownsville, TX
NWS Brownsville, TX issued this flash flood warning at Jul 6, 2021, 12:02 PM CDT for Cameron County, Hidalgo County, Texas. It was in force for 5 hr. 7 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 6, 2021, 12:02 PM CDT (17:02 UTC)
- Expired
- Jul 6, 2021, 4:37 PM CDT
- In force
- 5 hr
- Issued by
- NWS Brownsville, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cameron County, TX, Hidalgo County, TX
The radar
The Brownsville radar (KBRO), 55 km from the middle of the area, began a volume at 17:01 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 6, 12:10 PM CDT | FLASH FLOOD | 1 Ne Mercedes, TX | NUMEROUS PARTS OF FRONTAGE ROAD IN MERCEDES COVERED WITH WATER. |
| Jul 6, 1:04 PM CDT | FLASH FLOOD | 1 Wnw Weslaco, TX | SEVERAL INCHES OF WATER COVERING N BORDER AVE NEAR WESLACO HIGH SCHOOL. |
| Jul 6, 1:07 PM CDT | FLASH FLOOD | Mercedes, TX | SEVERAL INCHES OF WATER COVERING FRONTAGE ROAD NEAR VERMONT AVENUE IN MERCEDES. |
| Jul 6, 1:41 PM CDT | FLASH FLOOD | Mercedes, TX | EASTBOUND I-2/US 83 NEAR MERCEDES - WATER COMPLETELY COVERING THE RIGHT TWO LANES AND SHOULDER. POLICE HAVE CLOSED THOSE LANES AS A RESULT. |
| Jul 6, 1:45 PM CDT | FLASH FLOOD | 2 Ene Mercedes, TX | NWS EMPLOYEE REPORTED WATER UP TO THE TOPS OF WHEELS, SO TWO FEET DEEP, AND SEVERAL STALLED VEHICLES ALONG WB FRONTAGE ROAD NEAR RGV PREMIUM OUTLETS. |
| Jul 6, 2:05 PM CDT | FLASH FLOOD | 1 Nne Mercedes, TX | MERCEDES EM REPORTED ONGOING WATER RESCUES FROM VEHICLES ALONG THE I-2 FRONTAGE ROAD AND HIGHWAY 491. |
| Jul 6, 2:39 PM CDT | FLASH FLOOD | 1 Ne Mercedes, TX | SOCIAL MEDIA VIDEO SHOWS WATER COMING UP TO HOMES IN THE MERCEDES AREA. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brownsville Intl, TX (KBRO), launched 12:00Z, 5.0 hours before the alert went out and 58 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2401 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 676 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted.
664
WGUS54 KBRO 061702
FFWBRO
TXC061-215-062015-
/O.NEW.KBRO.FF.W.0022.210706T1702Z-210706T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
1202 PM CDT Tue Jul 6 2021
The National Weather Service in Brownsville has issued a
* Flash Flood Warning for...
West Central Cameron County in deep south Texas...
Southeastern Hidalgo County in deep south Texas...
* Until 315 PM CDT.
* At 1202 PM CDT, emergency management reported thunderstorms
producing heavy rain across the warned area. Between 3 and 4
inches of rain have fallen. Additional rainfall amounts of 1 to 2
inches are possible in the warned area. Flash flooding is ongoing
or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Emergency management reported.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Harlingen, Weslaco, Mercedes, Elsa, Progreso, Edcouch, Santa Rosa,
La Villa, Santa Maria, Indian Hills, Taylor Elementary School,
South Texas High School For Health Professions, Mercedes Police
Department, Mercedes Memorial Library, Ruben Hinojosa Elementary
School, Mercedes Junior High School, Mila Doce, Mercedes High
School, Weslaco Mid Valley Airport and Llano Grande Country Club.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 2606 9802 2633 9800 2631 9781 2605 9784
2605 9786 2607 9786 2606 9787 2607 9788
2606 9789 2606 9793 2606 9794 2605 9794
2606 9795 2605 9797 2607 9798 2606 9799
2606 9800 2606 9801 2607 9801
FLASH FLOOD...OBSERVED
$$
53-Schroeder4 follow-up statements
144
WGUS74 KBRO 061743
FFSBRO
Flash Flood Statement
National Weather Service Brownsville TX
1243 PM CDT Tue Jul 6 2021
TXC061-215-062015-
/O.CON.KBRO.FF.W.0022.000000T0000Z-210706T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron TX-Hidalgo TX-
1243 PM CDT Tue Jul 6 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 PM CDT THIS
AFTERNOON FOR WEST CENTRAL CAMERON AND SOUTHEASTERN HIDALGO
COUNTIES...
At 1243 PM CDT, the public reported thunderstorms producing heavy
rain across the warned area. Numerous portions of the Interstate 2
frontage road in Mercedes were reported to be under water. Between
3 and 5 inches of rain have fallen. Additional rainfall amounts of 1
to 2 inches are possible in the warned area. Flash flooding is
ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Public reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Harlingen, Weslaco, Mercedes, Elsa, Progreso, Edcouch, Santa Rosa,
La Villa, Santa Maria, Indian Hills, Taylor Elementary School,
South Texas High School For Health Professions, Mercedes Police
Department, Mercedes Memorial Library, Ruben Hinojosa Elementary
School, Mercedes Junior High School, Mila Doce, Mercedes High
School, Weslaco Mid Valley Airport and Llano Grande Country Club.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 2606 9802 2633 9800 2631 9781 2605 9784
2605 9786 2607 9786 2606 9787 2607 9788
2606 9789 2606 9793 2606 9794 2605 9794
2606 9795 2605 9797 2607 9798 2606 9799
2606 9800 2606 9801 2607 9801
FLASH FLOOD...OBSERVED
$$
Schroeder694
WGUS54 KBRO 061913
FFWBRO
TXC061-215-062145-
/O.EXT.KBRO.FF.W.0022.000000T0000Z-210706T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Brownsville TX
213 PM CDT Tue Jul 6 2021
The National Weather Service in Brownsville has extended the
* Flash Flood Warning for...
West Central Cameron County in deep south Texas...
Southeastern Hidalgo County in deep south Texas...
* Until 445 PM CDT.
* At 213 PM CDT, local law enforcement reported thunderstorms
producing heavy rain in Mercedes, along Interstate 2 and Highway
491 north of Mercedes. Between 4 and 6 inches of rain have fallen.
Additional rainfall amounts of 0.5 to 1 inch are possible in the
warned area. Flash flooding is already occurring.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Law enforcement reported rescues from vehicles in and
around Mercedes.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Harlingen, Weslaco, Mercedes, Elsa, Progreso, Edcouch, Santa Rosa,
La Villa, Santa Maria, Indian Hills, Taylor Elementary School,
South Texas High School For Health Professions, Mercedes Police
Department, Mercedes Memorial Library, Ruben Hinojosa Elementary
School, Mercedes Junior High School, Mila Doce, Mercedes High
School, Weslaco Mid Valley Airport and Llano Grande Country Club.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 2606 9802 2633 9800 2631 9781 2605 9784
2605 9786 2607 9786 2606 9787 2607 9788
2606 9789 2606 9793 2606 9794 2605 9794
2606 9795 2605 9797 2607 9798 2606 9799
2606 9800 2606 9801 2607 9801
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
Schroeder042
WGUS74 KBRO 062026
FFSBRO
Flash Flood Statement
National Weather Service Brownsville TX
326 PM CDT Tue Jul 6 2021
TXC061-215-062145-
/O.CON.KBRO.FF.W.0022.000000T0000Z-210706T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron TX-Hidalgo TX-
326 PM CDT Tue Jul 6 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 445 PM CDT THIS
AFTERNOON FOR WEST CENTRAL CAMERON AND SOUTHEASTERN HIDALGO
COUNTIES...
At 326 PM CDT, local law enforcement reported thunderstorms had
produced heavy rain in Mercedes, along Interstate 2 and Highway 491
north of Mercedes. Between 4 and 6 inches of rain have fallen.
Additional rainfall amounts of 0.5 to 1 inch are possible in the
warned area. Flash flooding is already occurring.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Law enforcement reported.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
Some locations that will experience flash flooding include...
Harlingen, Weslaco, Mercedes, Elsa, Progreso, Edcouch, Santa Rosa,
La Villa, Santa Maria, Indian Hills, Taylor Elementary School,
South Texas High School For Health Professions, Mercedes Police
Department, Mercedes Memorial Library, Ruben Hinojosa Elementary
School, Mercedes Junior High School, Mila Doce, Mercedes High
School, Weslaco Mid Valley Airport and Llano Grande Country Club.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 2606 9802 2633 9800 2631 9781 2605 9784
2605 9786 2607 9786 2606 9787 2607 9788
2606 9789 2606 9793 2606 9794 2605 9794
2606 9795 2605 9797 2607 9798 2606 9799
2606 9800 2606 9801 2607 9801
FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
Schroeder572
WGUS74 KBRO 062137
FFSBRO
Flash Flood Statement
National Weather Service Brownsville TX
437 PM CDT Tue Jul 6 2021
TXC061-215-062147-
/O.CAN.KBRO.FF.W.0022.000000T0000Z-210706T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron TX-Hidalgo TX-
437 PM CDT Tue Jul 6 2021
...FLASH FLOOD WARNING FOR WEST CENTRAL CAMERON AND SOUTHEASTERN
HIDALGO COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...
LAT...LON 2606 9802 2633 9800 2631 9781 2605 9784
2605 9786 2607 9786 2606 9787 2607 9788
2606 9789 2606 9793 2606 9794 2605 9794
2606 9795 2605 9797 2607 9798 2606 9799
2606 9800 2606 9801 2607 9801
$$
MejiaThe office that day
Everything else NWS Brownsville, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 3:29 AM CDT | Areal Flood Advisory | BRO | Jim Hogg, Zapata | 2 hr |
| Jul 6, 8:09 AM CDT | Flash Flood Watch | BRO | Brooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more | 4 days |
| Jul 6, 8:29 AM CDT | Areal Flood Advisory | BRO | Starr | 2 hr |
| Jul 6, 9:01 AM CDT | Special Weather Statement | BRO | Kenedy | 44 min |
| Jul 6, 10:04 AM CDT | Special Marine Warning | BRO | 26 min | |
| Jul 6, 10:38 AM CDT | Special Weather Statement | BRO | Willacy | 52 min |
| Jul 6, 10:59 AM CDT | Special Weather Statement | BRO | Hidalgo | 61 min |
| Jul 6, 11:30 AM CDT | Areal Flood Advisory | BRO | Cameron, Hidalgo, Willacy | 5 hr |
| Jul 6, 12:24 PM CDT | Special Weather Statement | BRO | Cameron | 66 min |
| Jul 6, 12:50 PM CDT | Areal Flood Advisory | BRO | Cameron, Willacy | 115 min |
| Jul 6, 1:13 PM CDT | Special Weather Statement | BRO | Cameron, Willacy | 62 min |
| Jul 6, 1:18 PM CDT | Special Marine Warning | BRO | 57 min | |
| Jul 6, 4:37 PM CDT | Areal Flood Warning | BRO | Cameron, Hidalgo | 7 hr |
| Jul 6, 5:06 PM CDT | Areal Flood Advisory | BRO | Jim Hogg, Starr, Zapata | 3 hr |
| Jul 6, 5:31 PM CDT | Special Marine Warning | BRO | 44 min |
Nearby
Flash Flood Warnings in Texas, 2021Every flash flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.